{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53242","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.393Z","datePublished":"2026-06-25T08:39:37.129Z","dateUpdated":"2026-06-28T06:40:49.406Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-28T06:40:49.406Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: PCM: Fix wait queue list corruption in snd_pcm_drain() on linked streams\n\nsnd_pcm_drain() uses init_waitqueue_entry which does not clear\nentry.prev/next, and add_wait_queue with a conditional\nremove_wait_queue that is skipped when to_check is no longer\nin the group after concurrent UNLINK.  The orphaned wait entry\nremains on the unlinked substream sleep queue.  On the next\ndrain iteration, add_wait_queue adds the entry to a new queue\nwhile still linked on the old one, corrupting both lists.  A\nsubsequent wake_up dereferences NULL at the func pointer\n(mapped from the spinlock at offset 0 of the misinterpreted\nwait_queue_head_t), causing a kernel panic.\n\nReplace init_waitqueue_entry/add_wait_queue/conditional\nremove_wait_queue with init_wait_entry/prepare_to_wait/\nfinish_wait.  init_wait_entry clears prev/next via\nINIT_LIST_HEAD on each iteration and sets\nautoremove_wake_function which auto-removes the entry on\nwake-up.  finish_wait safely handles both the already-removed\nand still-queued cases."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/core/pcm_native.c"],"versions":[{"version":"9baee36e8c5443411c4629afabafaff8a46a23fd","lessThan":"cac5bf3500ee6422cf64e0df0b5daeecfed42917","status":"affected","versionType":"git"},{"version":"fc71f888994569f87d5bee20b1ac6c9c1e3a7a79","lessThan":"d842f26a167e77a36f3ed333b9fa99d36ef99fe6","status":"affected","versionType":"git"},{"version":"629cf09464cf98670996ea5c191dc9743e6f3f00","lessThan":"d68b621bb5a48051932f1017a6e1bc9b18f854d0","status":"affected","versionType":"git"},{"version":"ae8f8d30d334bad5b1b3cdb1eb8a0b771f55e432","lessThan":"b053fcd8912f06c30f932f5b8ec41c72de474695","status":"affected","versionType":"git"},{"version":"4a758e9a1f5ed722f83c4dd35f867fe811553bcb","lessThan":"cd98837db15f323463b8df07282ac723bd5c3fed","status":"affected","versionType":"git"},{"version":"9b1dbd69ba6f8f8c69bc7b77c2ce3b9c6ed05ba6","lessThan":"7c71a9522555ff137a9ca36b15d759ca04d84788","status":"affected","versionType":"git"},{"version":"9b1dbd69ba6f8f8c69bc7b77c2ce3b9c6ed05ba6","lessThan":"88fe2e3658726cb21ff2dcf9770bf672f9b9d31b","status":"affected","versionType":"git"},{"version":"c2f64e05a0587a83ec42dbd6b7a7ded79b2ff694","status":"affected","versionType":"git"},{"version":"5.10.253","lessThan":"5.10.259","status":"affected","versionType":"semver"},{"version":"6.1.167","lessThan":"6.1.176","status":"affected","versionType":"semver"},{"version":"6.6.130","lessThan":"6.6.143","status":"affected","versionType":"semver"},{"version":"6.12.78","lessThan":"6.12.94","status":"affected","versionType":"semver"},{"version":"6.18.19","lessThan":"6.18.36","status":"affected","versionType":"semver"},{"version":"6.19.9","lessThan":"6.20","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/core/pcm_native.c"],"versions":[{"version":"7.0","status":"affected"},{"version":"0","lessThan":"7.0","status":"unaffected","versionType":"semver"},{"version":"5.10.259","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"6.1.176","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.143","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.94","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.36","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.13","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.253","versionEndExcluding":"5.10.259"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.167","versionEndExcluding":"6.1.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.130","versionEndExcluding":"6.6.143"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.78","versionEndExcluding":"6.12.94"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18.19","versionEndExcluding":"6.18.36"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"7.0.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"7.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19.9"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/cac5bf3500ee6422cf64e0df0b5daeecfed42917"},{"url":"https://git.kernel.org/stable/c/d842f26a167e77a36f3ed333b9fa99d36ef99fe6"},{"url":"https://git.kernel.org/stable/c/d68b621bb5a48051932f1017a6e1bc9b18f854d0"},{"url":"https://git.kernel.org/stable/c/b053fcd8912f06c30f932f5b8ec41c72de474695"},{"url":"https://git.kernel.org/stable/c/cd98837db15f323463b8df07282ac723bd5c3fed"},{"url":"https://git.kernel.org/stable/c/7c71a9522555ff137a9ca36b15d759ca04d84788"},{"url":"https://git.kernel.org/stable/c/88fe2e3658726cb21ff2dcf9770bf672f9b9d31b"}],"title":"ALSA: PCM: Fix wait queue list corruption in snd_pcm_drain() on linked streams","x_generator":{"engine":"bippy-1.2.0"}}}}